Esperite and Andesine Optical Properties

Esperite

Andesine

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

colorless.

1.3 Dispersion

NA0.70

0.007 1

1.4 Transparency

OpaqueAnthony et al, Opaque, Transparent

Transparent, Translucent, Transparent to translucent

1.5 Refractive Index

1.760-1.7741.543-1.564

1 3.25

1.6 Optic Character

Not Available

Biaxial/+

1.7 Crystal System

monoclinic

Triclinic

1.8 Birefringence

0.0120.007-0.011

0 0.296

1.9 Clarity

OpaqueAnthony et al

Transparent

Esperite and Andesine Optic Character

Esperite and Andesine optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Esperite and Andesine Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Esperite and Andesine optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character. Andesine has Biaxial/+ character.

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Esperite and Andesine Transparency

Similar to their colors, Esperite and Andesine transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Esperite is Opaque, OpaqueAnthony et al and Transparent while Esperite is Opaque, OpaqueAnthony et al and Transparent in appearance.